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Question

By doing the given operation, now by how much time is the satellite leading the spacecraft?
987513_e50fbbcbac2042949d5bcc2e53a53c55.png

A
38s
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B
138s
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C
Lags by 38s
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D
Lags by 138s
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Solution

The correct option is A 38s
Initially the time periods of the satellite and the spacecraft were same equal to 9358s and after firing rockets of A, it acquires, smaller orbit and A will come to initial position in time period of 9220s while B will take 9358s to come to its initial position or (9358-100)s to come to the original position of A as 100s is the initial time gap between the two.
It means now A leads B by (9358−100−9220)=38s.

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